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Rifles, Reloading, Optics, Equipment
Reloading
Brass Trimming problems
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<blockquote data-quote="lever-hed" data-source="post: 238084" data-attributes="member: 11667"><p><strong><span style="font-family: 'Verdana'">..as I indicated, my case oal max is 2.494, chamber is 2.520, if I back away .024 from my chamber length, I'll be at 2.496, .002 over the max SAAMI. I assume there is a safety factor involved and how this number was arrived at I couldn't say. If the case neck expands and there is debris, dirt, sand brass shavings, powder etc etc, stuck in the chamber, and if you don't clean your chamber for say many many rounds (or never)and use it in the field the end of the chamber can get bogged up with crud.. If the case neck cant expand enough to release the bullet (and all the gas) will create excessive pressures, obviously could blow up the gun, and maybe a finger or hand or elbow. For persons who use primarily at the bench and/or don't have custom chambers, I could see how this 'safety factor' could be objectionable. If it's a hunting gun (ie factory bbl) its typically assuming one will use it in the field, which most are made to be abused to a degree. Bottom line, if you know your chamber length and assume 3 to 4 thousands case growth, then you're fine, but if you're just shootin hogs, safety's built in.. like tom cruise said, I just drive, I don't know nuthin 'bout cars…</span></strong></p></blockquote><p></p>
[QUOTE="lever-hed, post: 238084, member: 11667"] [B][FONT=Verdana]..as I indicated, my case oal max is 2.494, chamber is 2.520, if I back away .024 from my chamber length, I’ll be at 2.496, .002 over the max SAAMI. I assume there is a safety factor involved and how this number was arrived at I couldn’t say. If the case neck expands and there is debris, dirt, sand brass shavings, powder etc etc, stuck in the chamber, and if you don’t clean your chamber for say many many rounds (or never)and use it in the field the end of the chamber can get bogged up with crud.. If the case neck cant expand enough to release the bullet (and all the gas) will create excessive pressures, obviously could blow up the gun, and maybe a finger or hand or elbow. For persons who use primarily at the bench and/or don’t have custom chambers, I could see how this ‘safety factor’ could be objectionable. If it’s a hunting gun (ie factory bbl) its typically assuming one will use it in the field, which most are made to be abused to a degree. Bottom line, if you know your chamber length and assume 3 to 4 thousands case growth, then you’re fine, but if you’re just shootin hogs, safety’s built in.. like tom cruise said, I just drive, I don’t know nuthin ‘bout cars…[/FONT][/B] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Brass Trimming problems
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